Cherry tree medication time, morning or afternoon, inside or outside first?

Cherry trees should be drugged before germination in spring to the whole growing season, and the growing seasons are June 10, late June, late July, July and August, and generally drugged at about 4-6 pm. Precautions for cherry tree pesticide application: spray Baume 5 degree stone sulfur mixture before germination; spray mancozeb and other pesticides around June 10; spray 200 times lime multiple Bordeaux solution on leaves in late June and late July; spray pyrethroids and other pesticides in July and August.

1. Time for cherry trees to apply pesticides

1, cherry trees from spring germination to the whole growing season to be treated, the general time to apply medicine needs to be determined according to the growth situation, in cherry trees before germination can be played stone sulfur mixture, to prevent all kinds of bacteria and pests.

2. Cherry growth seasons are June 10, late June, late July, July-August, and before and after plastic film mulching in facility cultivation. During this period, targeted pesticides can be used to control diseases and insect pests.

3, generally in the summer high temperature period, it is appropriate to spray pesticides on cherry trees around 4-6 pm, which can not only improve the prevention effect, but also avoid the phenomenon of high temperature heatstroke.

4. The main diseases of cherry leaves are peach bacterial hole disease and round spot disease, which usually occur seriously in rainy July, August and September, mainly damaging branches, leaves, tender shoots and fruits. If the control is not timely, it is easy to cause the whole tree to fall leaves, and it will affect the flower bud formation, tree vigor development, and the flowering and fruit setting of cherry trees in the second year.

5. Cherry trees have fewer pests and diseases in spring, but if there are scale insects on cherry branches, it is necessary to spray 3-5 degrees of sulfur mixture once in late February for prevention and control.

Second, cherry tree pesticide precautions

1. Before the cherry tree sprouts, the whole tree can be sprayed with a 5-degree stone sulfur mixture.

2. Start spraying disease prevention drugs around June 10. Generally, imported thiophanate methyl, 50% Shanghai-produced multi-bacteria record, mancozeb, Dasheng M-45, etc. can be selected.

3. In late June and late July, Bordeaux mixture with 200 times lime can be sprayed on the leaves once each time. Bordeaux mixture needs to be sprayed 2-3 times a year, mainly to prevent red spiders, white spiders, green bugs, small rolls, leaf miners, thorn moths, etc., and also to control leaf eating pests of Yantai cherry.

4. Cherry trees cultivated in general facilities can be sprayed with a 3-5 degree stone sulfur mixture before and after mulching, and then sprayed with 70% mancozeb 500 times solution or 50% carbendazim 700 times solution 1-2 times after fruit picking.

5. In July and August, 2-3 times of lime equivalent formula 200 times Bordeaux mixture can be sprayed, and caterpillars and thorn moths can be sprayed with pyrethroids in larval stage for control.